warren



(No Model.) 2 Sheets-Sheet 1. E. L. WARREN & A. LADD.

ART OF DRAWING WIRE. No. 318,062, Patented May 19, 1885.

2 Sheets-Sheet 2. E. L. WARREN & A. LADD.

ART OF DRAWING WIRE. 110,318,062. Patented May 19, 1885.

(No Model.)

UNITED STATES PATENT ()FFICE.

EDWARD L. vVARREN AND ALBERT LADD, OF \VOBGESTER, MASS.

ART OF DRAWlNG WIRE.

SPECIFICATION forming part of Letters Patent N0. 318,062, dated May19,1885.

Application filed February 24, 1885. (No specimens.)

To all whom it may concern.-

Be it known that we, EDWARD L. \VARREN and ALBERT LADD, both ofWorcester, in the county of Worcester and State of Massachusetts, haveinvented certain new and useful Improvements in the Art or Process ofMaking Wire; and we do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming a part of this specification, and inwhich Figure 7 1 represents a vertical section through an ordinary wirecoating and drawing apparatus, with a crimping device shown inconnection with the same for carrying out our aforesaid process, as willbe hereinafter more fully explained; and Figs. 2 and 8 represent, uponan enlarged scale, an end and side view, respectively, of thewire-crimping device shown in Fig. 1.

Our invention relates, to improvements in the art or process of coatingand drawing wire; and it consists in crimping said wire between thecoating and drawing operations by means of a suitable crimping deviceinterposed between the coating apparatus and the dies for reducing thewire,as and for the purpose hereinafter more fully described.

To enable those skilled in the art to which our invention appertains tomake and use the same, we will proceed to describe it more in detail.

In the drawings,the parts marked A repre sent a double frame, such as iscommonly used in the process of coating and drawing wire. In Fig. 1 across-section of said frame is shown. It is made of sufficient length toreceive a series of tubs, in which are placed the coating material andblades upon which the wire is coiled-one of said tubs,B, and blades 0being shown in said figure. The tubs are placed in a sink, D, madelengthwise of the frame,which is provided with a central inclinedtrough, E, and outlet-pipe F for carrying off any liquor which may bespilled out of the tubs B.

Upon one of the side platforms, G, of the double frame A,opposite fromthe tubs B, are arranged the dies H and wire-blocks I in the usual way,said dies being suspended on the wires being treated and held againstthe stationary part H by the forward draft, the blocks I also beingturned to wind up the wire and produce the aforesaid draft by connectionwith the usual mechanism employed for that purpose,which, being wellunderstood, is not shown in the drawings. 1

The parts marked J represent a wire-crimping device for crimping thewire a between said device and the reducing-die H, as shown at b in Fig.1 of the drawings, the purpose of which will be hereinafter described.Said crimping device J is constructed and arranged in the followingmanner: Upon each side of the base part c are formed or secured theupright standards d cl, which are provided with suitable bearings, inwhich the hubs of the toothed wheels e e turn. The lower wheel, e, turnsin stationary bearings, while the upper one, e, is fitted in theadjustable bearings f, arranged to slide up and down in suitable ways inthe standards d. A downward pressure is produced upon said bearings bymeans of spiral springs arranged between the top of each bearing and theunder sides of cap-pieces h, secured to the tops of standards 01. Thesprings are in this instance fitted over vertical spindles 2', having abase formed or secured upon the lower end of each for the springs tofoot upon, and which extend up through the cap-pieces h. The slidingbearings f may be adjusted vertically by means of the screws j, toregulate the pressure upon the wire a passing between the crimping-rollse e in forming the crimps or short bends b in said wire. (Shown in Fig.l.)

The wires are properly guided from the blades or spools G to thecrimping-rolls e e as they are drawn forward by the wire-blocks I bypassing through the slots is formed in the guide Z, which is secured tothe outer end of the base part c of the crimping device.

A crimping device, J, may be used in connection with each set of blades,dies, and wire blocks, or several wires crimped by one device, ifdesired, as indicated by the slots in the guide Z.

We do not limit ourselves to the construction of the crimping devicehereinbefore described, as other equivalent means may be employed forimparting to the upper toothed wheel, 6, an upward springing motionother than that described and shown, and the manner of guiding the wiresas they move forward may be varied without departing from the principleof our invention.

Previous to our invention much'imperfect Wire has been produced indrawing the same down to the smaller sizes, owing to the opening in thedie becoming clogged or gunnned up with the coating material andsurface-scale, which is removed from the wire by said process ofdrawing. In practice we find that the wire will run smooth and of evensize for a short time, when the die then becomes clogged, as aforesaid,and said wire is reduced in size, and so continues of first one size andthen another, according to the amount of refuse matter collected in saiddie. lhe above is a wellknown and serious objection, especially indrawing copper and similar soft wire, it being impossible to draw thesmaller sizes of wire so that they will be of uniform size and smoothness throughout their entire length.

By crimping or forming short bends bin the wire before it is drawn wefind that the afore said objection is entirely obviated.

As the crimped wire is drawn forward into the reducingdie it turns andworks about in the opening in said die, owing to the crimps or bendsformed in the same, which rub continually and with considerable forceagainst the sides of said opening, and thereby keep it clean and freefrom clogging at all times.

WVe have drawn considerable wire by our improved process, and find thatit runs smooth and of even size throughout its entire length. WVe havealso ascertained that by its use wire may be reduced at number of sizessmaller than by the old method, with equally as good results as theabove described.

In the drawings we have represented a continuous process of coating,crimping, and drawing wire, thus crimping and drawing said wire whilewet with the coating material; but, if preferred, the coating may bedone by a separate operation, and the wire subsequently crimped anddrawn when in a dry state without departing from the principle of ourinvention.

WVhat we claim as new and of our invention, and desire to secure byLetters Patent, is-

In the art or process of making wire, crimping said wire after havingbeen coated and prior to being drawn, to facilitate said drawingoperation, substantially as shown and described.

EDXVARD L. \VARREN. ALBERT LADD.

\ \Nitnesses:

ALBERT A. BARKER, \VALTER B. NoURsn.

